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Organic-inorganic hybrid cross-linked sulfonated polyaryletherketone polymer electrolyte material and preparation method thereof

A technology of sulfonated polyaryletherketone and electrolyte material, which is applied in the field of functional polymer material preparation and achieves the effects of good mechanical strength and electrical conductivity, simple operation and uniform dispersion.

Inactive Publication Date: 2010-06-16
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the difference in the structure of the organic and inorganic two-phase, the prepared hybrid membrane may have organic-inorganic two-phase separation.

Method used

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  • Organic-inorganic hybrid cross-linked sulfonated polyaryletherketone polymer electrolyte material and preparation method thereof
  • Organic-inorganic hybrid cross-linked sulfonated polyaryletherketone polymer electrolyte material and preparation method thereof
  • Organic-inorganic hybrid cross-linked sulfonated polyaryletherketone polymer electrolyte material and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0032] Get the sulfonated polyether ketone (the structural formula of described polyether ketone is as shown in formula I, wherein n=400) that the degree of sulfonation is 68%, use 1mol / L Na 2 CO 3The solution was soaked for 24 hours, washed with deionized water until neutral and dried in vacuum, dissolved in a mixture of ethanol and water with a volume ratio of 1:1, and prepared as a solution with a percentage of 15wt%; weighed 100 parts of polymer Solution, start stirring, under the protection of inert gas, slowly add 10 parts of 10wt% sodium borohydride aqueous solution at 25 ° C, keep the reaction system at 80 ° C and continue to react for 24 hours, after filtration, concentrate the filtrate and vacuum dry to obtain hydroxyl Functionalized sulfonated polyether ketone; the dried reduction product is dissolved in dimethylformamide, and prepared into a solution with a mass percentage of 10 wt%. Take 100 parts of the sulfonated polyether ketone reduction product solution with...

Embodiment 2

[0034] Take sulfonated polyether ether ketone (the structural formula of the polyether ether ketone is shown in formula II, wherein n=360) with a sulfonation degree of 75%, and use 1mol / L Na 2 CO 3 The solution was soaked for 24 hours, washed with water until neutral and vacuum-dried, dissolved in a mixed solution of ethanol and water with a volume ratio of 1:1, and prepared into a solution with a percentage of 15wt%; weighed 100 parts of the polymer solution, and opened Stirring, under the protection of inert gas, slowly add 10 parts of 10wt% sodium borohydride aqueous solution at 25 ° C, keep the reaction system at 80 ° C and continue to react for 24 hours, after filtration, concentrate the filtrate and dry it in vacuum to obtain hydroxyl functionalized Sulfonated polyether ether ketone; the dried reduction product is dissolved in dimethylformamide, and prepared into a solution with a mass percentage of 10 wt%. Take 100 parts of the sulfonated polyether ether ketone reducti...

Embodiment 3

[0036] Get the sulfonated polyether ketone ketone (the structural formula of described polyether ketone ketone is shown in formula III, wherein n=320) that sulfonation degree is 71%, use 1mol / L Na 2 CO 3 The solution was soaked for 24 hours, washed with deionized water until neutral and dried in vacuum, dissolved in a mixture of methanol and water with a volume ratio of 1:1, and prepared as a 15wt% solution; weighed 100 parts of polymer solution, start stirring, under the protection of an inert gas, slowly add 15 parts of 10wt% sodium borohydride aqueous solution at 25°C, keep the reaction system at 80°C and continue to react for 24 hours, after filtering, concentrate the filtrate and vacuum dry to obtain Hydroxyl-functionalized sulfonated polyether ketone ketone; the dried reduction product is dissolved in dimethylacetamide, and prepared into a solution with a mass percentage of 10 wt%. Take 100 parts of the sulfonated polyether ketone ketone reduction product solution with ...

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Abstract

The invention discloses an organic-inorganic hybrid cross-linked sulfonated polyaryletherketone polymer electrolyte material and a preparation method thereof. The method for preparing the material comprises the steps of: performing reductive modification on sulfonated polyaryletherketone to obtain hydroxyl-functionalized sulfonated polyaryletherketone; then preparing a modified polymer into solution, and adding a bridging agent and a catalyst into the solution to react to obtain alkoxyl-functionalized sulfonated polyaryletherketone; and finally, co-hydrolyzing the alkoxyl-functionalized sulfonated polyaryletherketone and tetraethyl orthosilicate under acid conditions for membrane preparation, and finishing the removal of a solvent and a sol-gel reaction during membrane formation to obtain an organic-inorganic hybrid cross-linked polymer electrolyte membrane material. The electrolyte material provided by the invention has good dimensional stability, electrical conductivity, methanol-rejecting performance, mechanical strength and heat resistance, and has important application value in fields such as proton exchange membrane fuel cells (PEMFC), direct methanol fuel cells (DMFC), ion exchange resins, sensors, membrane separation and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional polymer materials, and relates to an organic-inorganic hybrid cross-linked sulfonated polyaryletherketone polymer electrolyte material and a preparation method thereof. Background technique [0002] Polyaryletherketone is a class of aromatic polymers containing ether bonds and carbonyl groups in the main chain, such as polyether ketone, polyether ether ketone, polyether ether ketone ketone, polyether ketone sulfone, etc. It is a class of engineering materials with excellent comprehensive properties. Plastics are widely used in aerospace, aviation, machinery, chemical industry, electric appliances and other fields. Sulfonated polyaryletherketone refers to a polymer containing sulfonic acid substituents on the aromatic ring of polyaryletherketone. It is a new type of functional material developed in recent years. Good application prospects. [0003] Polymer proton exchange membra...

Claims

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Application Information

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IPC IPC(8): C08L71/10C08K3/36C08J5/22C08G65/48H01M8/02H01M2/16H01M8/10B01D71/52H01M8/1041H01M8/1072
CPCY02E60/12Y02E60/522Y02E60/523Y02E60/50
Inventor 尚玉明冯少广谢晓峰王金海王要武刘国舜
Owner TSINGHUA UNIV
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